4-Cylinder Turbo Vehicles
- To test throttle switch circuitry, connect voltmeter across terminals "1" and "2". With ignition on and engine stopped, voltmeter reading at idle should be 2-8 volts.
- Above idle position, voltmeter reading should be 0 volts. If throttle switch does not respond as outlined, go to next step.
- With voltmeter still connected, ignition on and engine stopped, insert feeler gauge as shown in Fig 1 .
- Using feeler gauge listed in Throttle Switch Voltage Reading chart should produce voltages indicated in chart. If not, replace throttle switch and go to next step.
- After replacing throttle switch, connect voltmeter and turn ignition on with engine stopped. Loosen lock nut and turn adjusting screw on throttle lever until meter reading drops to 0 volts. Tighten lock nut.
- Insert .016" (0.4 mm) feeler gauge. Loosen throttle switch retaining screws until reading is indicated on voltmeter. Tighten retaining screws.
4-CYL TURBO THROTTLE SWITCH VOLTAGE SPECIFICATIONS
| Application | Feeler Gauge: In. (mm) | Voltmeter Reading |
|---|---|---|
| 4-Cyl. Turbo | .008 (0.2) | Any |
| 4-Cyl. Turbo | .045 (1.1) | 0 Volts |